Record Display for the EPA National Library Catalog


Main Title An evaluation of the E-SOx process on the EPA pilot electrostatic precipitator /
Author Hovis, Louis S.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Air and Energy Engineering Research Laboratory,
Year Published 1990
Report Number EPA/600/7-90/011
Stock Number PB90-216441
Subjects Boilers--Fuel--Environmental aspects--United States ; Electrostatic precipitation ; Sulfur dioxide ; Sulphur dioxide
Additional Subjects Air pollution control equipment ; Electrostatic precipitators ; Sulfur dioxide ; Particles ; Combustion products ; Pilot plants ; Spray drying ; Performance evaluation ; Sorbents ; Electrodes ; Temperature control ; E-SOx process ; Coal fired power plants ; Retrofitting
Library Call Number Additional Info Location Last
NTIS  PB90-216441 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 59 pages : illustrations ; 28 cm
The report gives results of a small pilot-scale evaluation of the E-SOx process, undertaken to obtain information needed to conduct a planned 5 MWe field pilot demonstration. The process uses an electrostatic precipitator (ESP) for combined sulfur dioxide (SO2) removal and particulate collection. The concept of spray drying is introduced to the inlet and/or first section of the ESP in which electrical components are removed. Because of the many ESPs at coal-fired power plants, the process is well suited to retrofitting. Evaluation results indicate that a 50-60% SO2 removal at a calcium/sulfur ratio of 1.2-1.4 can be obtained. Furthermore, this SO2 reduction can be achieved without degrading the particulate emissions event though the process requires a reduction in the collecting surface of the ESP. The use of a temperature-controlled electrode precharger to compensate for collecting surface loss is also described.
Caption title. "May 1990." "EPA/600/7-90/011." Microfiche.